ewsra wesra eswra sewra wsera swera ewrsa wersa erwsa rewsa wresa rwesa esrwa serwa erswa reswa srewa rsewa wsrea swrea wrsea rwsea srwea rswea ewsar wesar eswar sewar wsear swear ewasr weasr eawsr aewsr waesr awesr esawr seawr easwr aeswr saewr asewr wsaer swaer waser awser sawer aswer ewras weras erwas rewas wreas rweas ewars wears eawrs aewrs waers awers eraws reaws earws aerws raews arews wraes rwaes wares awres rawes arwes esraw seraw ersaw resaw sreaw rseaw esarw searw easrw aesrw saerw aserw erasw reasw earsw aersw raesw aresw sraew rsaew sarew asrew rasew arsew wsrae swrae wrsae rwsae srwae rswae wsare sware wasre awsre sawre aswre wrase rwase warse awrse rawse arwse srawe rsawe sarwe asrwe raswe arswe
Note: these 'words' (valid or invalid) are all the permutations of the word ewsra. These words are obtained by scrambling the letters in ewsra.